Least Common Multiple (LCM) of 15 and 82
The least common multiple (LCM) of 15 and 82 is 1230.
What is the Least Common Multiple (LCM)?
The LCM of two integers is the smallest positive integer that is divisible by both numbers. It is often used to find common denominators and solve problems involving periodic events.
Formula for LCM
The LCM of two numbers can be calculated using their GCD:
LCM(a, b) = |a × b| ÷ GCD(a, b)
How to Calculate the LCM of 15 and 82?
First, calculate the GCD of 15 and 82 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 15 ÷ 82 = 0 remainder 15 |
| 2 | 82 ÷ 15 = 5 remainder 7 |
| 3 | 15 ÷ 7 = 2 remainder 1 |
| 4 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 192 and 138 | 4416 |
| 136 and 70 | 4760 |
| 139 and 95 | 13205 |
| 170 and 20 | 340 |
| 126 and 114 | 2394 |